公开(公告)号：US06262569B1

公开(公告)日：2001-07-17

申请号：US08978709

申请日：1997-11-26

Applicant: John M. Carr ,  Donald W. Malackowski

Inventor： John M. Carr ,  Donald W. Malackowski

IPC: G01R3504

CPC classification number: G01R35/04

Abstract: A portable energy meter test system for testing energy meters and other related instrumentation on-site is disclosed. The test system utilizes waveform generating circuitry to generate and transmit electrical waveforms to an energy meter to be tested, and sensing circuitry for sensing electrical characteristics corresponding to the transmitted electrical waveform. The test system includes a processor for evaluation and control of the testing procedure. A graphic touch screen is coupled to the processor for displaying information about the energy meter and for displaying test options to the user and allowing the user to control the testing process by touching the screen.

Abstract translation: 公开了一种便携式能量计测试系统，用于现场测试电能表和其他相关仪器。 测试系统利用波形发生电路来产生电波形并将其传输到要测试的能量计，以及感测电路，用于感测对应于所发射的电波形的电特性。 测试系统包括用于评估和控制测试程序的处理器。 图形触摸屏耦合到处理器，用于显示有关能量计的信息，并向用户显示测试选项，并允许用户通过触摸屏幕来控制测试过程。

公开(公告)号：US5821742A

公开(公告)日：1998-10-13

申请号：US347495

申请日：1994-11-30

Applicant: John M. Carr ,  Donald W. Malackowski

Inventor： John M. Carr ,  Donald W. Malackowski

IPC: G01R35/04 ,  G05F1/10

CPC classification number: G01R35/04

Abstract: A portable energy meter test system for testing energy meters and other related instrumentation on-site is disclosed. The test system utilizes waveform generating circuitry to generate and transmit electrical waveforms to an energy meter to be tested, and sensing circuitry for sensing electrical characteristics corresponding to the transmitted electrical waveform. The test system includes a processor for evaluation and control of the testing procedure. A graphic touch screen is coupled to the processor for displaying information about the energy meter and for displaying test options to the user and allowing the user to control the testing process by touching the screen.

Abstract translation: 公开了一种便携式能量计测试系统，用于现场测试电能表和其他相关仪器。 测试系统利用波形发生电路来产生电波形并将其传输到要测试的能量计，以及感测电路，用于感测对应于所发射的电波形的电特性。 测试系统包括用于评估和控制测试程序的处理器。 图形触摸屏被耦合到处理器，用于显示关于能量计的信息，并且用于向用户显示测试选项，并允许用户通过触摸屏幕来控制测试过程。

公开(公告)号：US06896479B2

公开(公告)日：2005-05-24

申请号：US10409514

申请日：2003-04-08

Applicant: Gary R. Svihla ,  Eric J. Duve ,  John M. Carr

Inventor： Gary R. Svihla ,  Eric J. Duve ,  John M. Carr

IPC: F01D5/02 ,  F01D5/04 ,  F01D25/16 ,  F02C6/12 ,  F01D3/00

CPC classification number: F01D5/026 ,  F01D5/048 ,  F01D25/166 ,  F01D25/168 ,  F02C6/12 ,  F05D2220/40 ,  F05D2240/50 ,  F05D2240/60 ,  F05D2240/61

Abstract: A turbocharger rotor has a turbine wheel and shaft, a compressor wheel and adapter and a separate thrust runner clamped together by a fastener rod. The adapter is piloted on the shaft and the thrust runner is piloted on the adapter, which has annular ends engaging the shaft and adapter for torque transmission between the turbine and compressor wheels. An anti-rotation coupling relates the phase angles of the shaft with the adapter and the thrust runner during assembly. Opposed radial thrust faces on the thrust runner and adapter are disposed at opposite ends of a compressor bearing journal on the adapter to allow placement of mating bearings on a single element of a turbocharger housing. Advantages include simplification of manufacture and assembly of the rotor in a turbocharger housing.

Abstract translation: 涡轮增压器转子具有涡轮机叶轮和轴，压缩机叶轮和适配器以及通过紧固件夹紧在一起的单独的推力滑块。 适配器在轴上被引导，并且推力滑轮在适配器上被引导，该适配器具有与轴和适配器接合的环形端，用于涡轮机和压缩机轮之间的扭矩传递。 防旋转联轴器在组装期间将轴与适配器和推力滑轮的相位角相关联。 推力滑轮和适配器上的相对的径向推力面设置在适配器上的压缩机轴承颈部的相对端，以允许将匹配的轴承放置在涡轮增压器壳体的单个元件上。 优点包括简化涡轮增压器壳体中的转子的制造和组装。

公开(公告)号：US4328401A

公开(公告)日：1982-05-04

申请号：US132203

申请日：1980-03-20

Applicant: John M. Carr

Inventor： John M. Carr

IPC: G01R1/20 ,  H01H3/20 ,  H01H9/08 ,  H01H19/58 ,  H01H21/22

CPC classification number: H01H3/20 ,  G01R1/206 ,  H01H19/58 ,  H01H9/08

Abstract: An electrical test switch having a pair of spaced conductive rotors provided with matching cut-outs, the rotors being movable between a "normal" position and a "test" position. At least two spaced conductive contacts extend within a region between the rotors. The cut-outs and the conductive contacts are arranged so that the contacts wipe against the rotors when the rotors are in the "normal" position and at least one of the spaced contacts is aligned with the cut-outs when the rotors are in the "test" position. A shaft locks the switch in the "normal" position until manually released.

Abstract translation: 一种电测试开关，其具有一对间隔开的导电转子，其具有匹配的切口，所述转子可在“正常”位置和“测试”位置之间移动。 至少两个间隔开的导电触头在转子之间的区域内延伸。 切口和导电触头被布置成使得当转子处于“正常”位置时，触头擦拭转子，并且当转子处于“正常”位置时，至少一个间隔开的触点与切口对齐， 测试“位置。 轴将开关锁定在“正常”位置，直到手动释放。

公开(公告)号：US4766370A

公开(公告)日：1988-08-23

申请号：US599544

申请日：1984-04-12

Applicant: John M. Carr

Inventor： John M. Carr

IPC: G01R35/04 ,  G01R11/32 ,  G08B23/00

CPC classification number: G01R35/04

Abstract: A system for calibrating an energy meter is provided. The energy meter has a rotor which rotates at an angular velocity generally proportional to the energy input to the meter. A reference transducer receives an energy input for generating a reference signal having a predetermined parameter, such as frequency, generally proportional to the energy input. A test apparatus is responsive to rotation of the rotor to generate a test signal having a predetermined parameter, such as frequency, generally proportional to the angular velocity of the rotor. An error signal generator receives the reference signal and the test signal upon fractional rotation of the rotor and generates an error signal to indicate the amount of error between the frequency of the test signal and a calibration value corresponding to the frequency of the reference signal. The meter is calibrated based on the error signal. A related method is also disclosed for calibrating the meter.

Abstract translation: 提供了一种用于校准能量计的系统。 能量计具有转子，转子的角速度通常与输入到仪表的能量成正比。 参考换能器接收能量输入，用于产生具有与能量输入成正比的预定参数（例如频率）的参考信号。 测试装置响应于转子的旋转以产生具有与转子的角速度成比例的预定参数（例如频率）的测试信号。 误差信号发生器在转子分数旋转时接收参考信号和测试信号，并产生误差信号，以指示测试信号的频率与对应于参考信号的频率的校准值之间的误差量。 仪表根据误差信号进行校准。 还公开了用于校准仪表的相关方法。

公开(公告)号：US4080567A

公开(公告)日：1978-03-21

申请号：US585109

申请日：1975-06-09

Applicant: Wallace C. Kemp ,  John M. Carr

Inventor： Wallace C. Kemp ,  John M. Carr

IPC: G01R11/25 ,  G01R1/36

CPC classification number: G01R11/25

Abstract: A heat sensitive abnormal current condition detecting and indicating device associated with a watthour meter indicates that a possibly damaging surge has been experienced by the meter. The abnormal condition detecting and indicating device includes indicator means retained in normal position by a heat sensitive material, such as solder, with the indicator means being biased to move from the normal position to an abnormal condition position should the conductor being monitored experience a heat rise sufficient to soften the heat sensitive material and release the indicator means. A plurality of embodiments of the heat sensitive abnormal condition detecting and indicating device are shown including a rod maintained in normal position within a tube under spring bias with the rod being movable longitudinally to thereafter extend from the tube to indicate a possible abnormality when a monitored conductor experiences a heat rise sufficient to melt solder holding the rod in normal position, a flag mounted on a rotatable wheel and rod assembly maintained in a rotational normal position with a spring bias thereon so that the wheel and rod assembly rotates to a position wherein the flag indicates an abnormal condition when a monitored conductor experiences a heat rise sufficient to melt solder holding the wheel and rod assembly in normal position, and a spring arm held against the monitored conductor by means of solder so that a possibly damaging surge experienced sufficient to heat the conductor and melt the solder frees the spring load arm to spring outwardly for visually indicating that a possible abnormal condition has occurred.

Abstract translation: 与电度表相关联的热敏异常电流状态检测和指示装置表明仪表已经经历了可能的破坏性浪涌。 异常状态检测指示装置包括通过热敏材料（例如焊料）保持在正常位置的指示装置，如果被监测的导体经受升温，则指示装置被偏置以从正常位置移动到异常状态位置 足以软化热敏材料并释放指示装置。 显示了热敏异常状况检测和指示装置的多个实施例，其包括在弹簧偏压下在管内保持在正常位置的杆，杆可纵向移动，此后从管延伸以指示可能的异常， 经历足以熔化将棒保持在正常位置的焊料的热升高，安装在可旋转的轮和杆组件上的标记，其在其上具有弹簧偏压保持在旋转正常位置，使得轮和杆组件旋转到其中标志 表示当监控的导体经受足以熔化保持车轮和杆组件在正常位置的焊料的热升高的异常状况，以及通过焊料保持抵靠被监测的导体的弹簧臂，使得可能具有破坏性的浪涌足以加热 导体和熔化焊料释放弹簧负载臂以向外弹簧以进行显示 同时表明发生了可能的异常情况。

公开(公告)号：US06945748B2

公开(公告)日：2005-09-20

申请号：US10762397

申请日：2004-01-22

Applicant: Gary R. Svihla ,  Xinwen Xiao ,  John M. Carr

Inventor： Gary R. Svihla ,  Xinwen Xiao ,  John M. Carr

IPC: F04D27/02 ,  F04D29/42 ,  F01D25/24

CPC classification number: F04D29/4213 ,  F04D27/0207 ,  F04D29/685

Abstract: A centrifugal compressor includes an annular inlet air recirculation channel having a smoothly variable cross section extending from a first slot at a forward end of the channel adjacent an inlet member to a second slot at a rearward end of the channel beyond an inlet end of a vaned compressor impeller. The channel is formed between an aerodynamic channel ring supported in a smooth annular recess formed in a compressor housing and the separate inlet member. The ring may be mounted by radial struts connected with the housing and located in an area of low momentum air flow. The channel ring and the channel recess may be machined or otherwise formed with smoothly variable surfaces prior to assembly of the ring into the housing. The channel may have a smoothly diminishing annular cross section for aerodynamically efficient air flow.

Abstract translation: 离心式压缩机包括环形入口空气再循环通道，该通道具有平滑可变的横截面，从邻近入口构件的通道的前端处的第一槽延伸到通道的后端处的第二槽，超过通风口的入口端 压缩机叶轮。 通道形成在支撑在形成在压缩机壳体中的平滑环形凹部中的空气动力通道环与分离的入口构件之间。 环可以通过与壳体连接并位于低动量空气流的区域中的径向支柱来安装。 通道环和通道凹槽可以在将环组装到壳体中之前加工或以其它方式形成有平滑可变的表面。 通道可以具有平滑减小的环形横截面，用于空气动力学有效的空气流动。

公开(公告)号：US4103261A

公开(公告)日：1978-07-25

申请号：US699784

申请日：1976-06-25

Applicant: John M. Carr

Inventor： John M. Carr

IPC: G02B5/00 ,  H01S3/00 ,  H01S3/10

CPC classification number: H01S3/0057 ,  G02B5/005

Abstract: A combined laser beam shutter and beam "on-off" indicator is disclosed. A rotatable shutter pin is mounted in a beam interrupting positon with the shutter having an aperture thereon which, when the pin is rotated to the proper position, permits passage of the light therethrough. The shutter pin is adapted, when in closed position, to reflect visible light caused by the laser to a position for observation thereby indicating that the beam is "on".